Page 64 - Surge-Protection-E_0.pdf

Surge Arresters – Type 2

DEHNguard modular
• Prewired complete unit consisting of a base part and plug-in
protection modules
• Energy coordination with other arresters of the Red/Line
product family
• High discharge capacity due to heavy-duty zinc oxide
varistors / spark gaps
• High reliability due to "Thermo Dynamic Control" SPD
monitoring device
• Easy replacement of protection modules without tools due
to module locking system with module release button
• Vibration and shock-tested according to EN 60068-2

For protecting low-voltage consumer installations against surges. For installation
in conformity with the lightning protection zone concept at the boundaries from
0B – 1 and higher.

DEHNguard M TNC ...: Modular surge arrester for use in TN-C systems
DEHNguard M TNS ...: Modular surge arrester for use in TN-S systems
DEHNguard M H TT ...: Modular surge arrester with an increased discharge capacity for use in TT and TN-S systems (3+1 configuration)
DEHNguard M TT ...: Modular surge arrester for use in TT and TN-S systems (3+1 configuration)
DEHNguard M TN ...: Modular surge arrester for use in single-phase TN systems
DEHNguard M H TT 2P ...: Modular surge arrester with an increased discharge capacity for single-phase TT and TN systems (1+1 configuration)
DEHNguard M TT 2P ...: Modular surge arrester for use in single-phase TT and TN systems (1+1 configuration)
DEHNguard M WE ...: Modular surge arrester especially for use in wind turbines
DEHNguard M ... FM: With remote signalling contact for monitoring device (floating changeover contact)

Featuring the functional Red/Line family design, the modular DEHNguard M As the remote signalling contact is designed as a floating changeover con-
... surge arresters set new standards in terms of safety and ease of use. The tact, the remote signal can, depending on the circuit concept, be used as a
proven protective circuit with heavy-duty zinc oxide varistors in combination make or break contact. The surge arresters of the modular multipole
with the dual “Thermo Dynamic Control” monitoring device are characteris- DEHNguard M family feature multifunctional terminals on a standardised
tic of the DEHNguard technology. spacing of 1 module for the connection of conductors and busbars, allowing
A variety of features show that both reliable surge protection and equipment easy wiring with other DIN rail mounted devices. The STAK 25 pin-shaped
safety are key elements of the modular DEHNguard surge arresters. The ap- terminal, which is compatible with all DEHNguard modules, allows optimal
plication-based product designation, which makes it considerably easier to series connection according to IEC 60364-5-53.
choose the correct device for the relevant application and the unique module The DEHNguard M H TT … type already meets the requirements of the new
locking system both reflect the most stringent safety requirements. The mod- VDE 0100-534 standard (Table: Discharge values In in a 3+1 configuration
ule locking system firmly fixes the protection modules to the base part. for three-phase systems with increased safety requirements). This standard
Neither vibration during transport nor the enormous forces of discharge can requires at least 40 kA for the N-PE path. Since it was technically possible to
loosen the protection modules. Nevertheless, they can be easily replaced implement a discharge capacity of 80 kA here, even an arithmetically correct
without tools by simply pressing the easy-to use module release button of design (4 x 20 kA = 80 kA) in combination with standard varistor modules
the protection modules. Each protective circuit of the multipole surge arrest- with In = 20 kA was implemented.
Surge Arresters – Type 2 installing an incorrect module. 25% L1
ers and each protection module are mechanically coded to guard against
The dual “Thermo Dynamic Control” monitoring device was not only devel-
L2
25%
oped on the basis of national and international product standards, but also
25%
L3
reflects decades of experience in the world market of surge protective devic-
es and considers many practical applications where arresters might be dam-
aged. As with all DEHN surge arresters with “Thermo Dynamic Control”, the 25% SPD SPD SPD N
surface temperature of the heavy-duty varistor and the intensity of the dis-
charge current are used for evaluation. The visual indicator with green and SPD 100%
red indicator flags shows the availability of every protective circuit. Apart PE
from this standard visual indication, DEHNguard M ... FM devices feature a 3+1 configuration with an increased dis-
three-pole remote signalling terminal. charge capacity 4 x 20 kA = 80 kA.

952 313 DG M TNC 150
952 300 DG M TNC 275 DEHNguard M TNC ...
952 314 DG M TNC 385
952 303 DG M TNC 440
Modular surge arrester for use in TN-C systems (3+0 configuration).
952 313 4013364123939 04 01 02 01 299 g
225,60 €
952 300 4013364108431 04 01 02 01 334 g
204,70 €
952 314 4013364124028 04 01 02 01 342 g
225,60 €
Type DG M ... TNC 150 TNC 275 TNC 385 TNC 440
952 303 4013364120709 04 01 02 01 355 g
225,60 €
Part No. 952 313 952 300 952 314 952 303
SPD according to EN 61643-11 / IEC 61643-11 type 2 / class II type 2 / class II type 2 / class II type 2 / class II
Max. continuous operating voltage (a.c.) (UC) 150 V (50 / 60 Hz) 275 V (50 / 60 Hz) 385 V (50 / 60 Hz) 440 V (50 / 60 Hz)
Nominal discharge current (8/20 µs) (In) 15 kA 20 kA 20 kA 20 kA
Max. discharge current (8/20 µs) (Imax) 40 kA 40 kA 40 kA 40 kA
Voltage protection level (UP) ≤ 0.7 kV ≤ 1.5 kV ≤ 1.75 kV ≤ 2 kV
Max. mains-side overcurrent protection 125 A gG 125 A gG 125 A gG 125 A gG
Approvals KEMA, UL KEMA, VDE, UL KEMA, UL KEMA, UL
60 You will find detailed product information on our website Valid as of August 1, 2020